Means for abrading shoe leather



March 13, 1951 v STUCKLER 2,545,392

MEANS FOR ABRADING SHOE LEATHER Filed July 16, 1947 INVENTOR;

film Srzrczmme Patented Mar. 13, 1951 8 ABRADINGB85H)ETJEA'IHIEZR Fred.-Stuckler, Patersom-N; J. i I I APPHCati'OIIfJ 1111 16, 1947, Serial' N0: 761,266" I v1.1 The invention relates to means forabrading shoe leather, as-for the purpose: of prepari'ngiand roughening sole-andheel l'eather of shoes. for the applicationitheretoofiadditional leather'bymeans of adhesives.

The: present invention contemplatesvaznovel means for abradin'g sh'oeleather said means being in the form of a strip: of material; such 'as'thick fabric, leather; plastic} or fibre, havingileather abrading teeth extending from the surf ace:thereof, said-strip.beingiiconstructed so thati-it may bedetachably mounted? and: adjustablyheld-:- ona 4"Claims. (Cl;v 691) conventional split wheel such as isiusuallyrfound in shoerepairzshopsz;

A: particular feature: of thee-present" invention is the manner in which the leather rough'ening teeth areattached to the strip; The invention contemplates a strip; of, suitable material, ar'- ranged to be detachablymountedand adjustably helduponathe periphery of a-:common--s-p lit wheel, said strip having a numberofistaples'passed from" one side of said; strip to-therother side thereof, the bridges'of thestaplesebeingtflat againstrene side of said' strip andi-thevshanksi of, the stapies protruding through the-stripand-extending beyond the other side thereof; andbeingsharpened to produce:leatherabrading teethr Ina'preferred construction the staples areaarrangedin stag gered parallel rowsso that a; greatnumberof teeth may be presented upon the -abrading side of'the strip without'causing the bridgeszsof the various,- staples to overlapone another and; so add to' the: generalthicknessof the assembly;

The present inventionfurther'contemplates the provision: of such' a-leather" roughening and'preparing means which" may; .bezused. not only to.

' abrade the surface of leather-butalso to out it into suitable shape:-

The present invention further contemplates the provision of such a:. strip. of material the length of which may be -easily adjustedlto accommodate thestrip tothe peripheries oilvarious wheels of slightly varyingd iameterr. Further the invention. contemplates means.v for tightening slack within the strip caused byuse' and fatigue of the material of construction;

The present invention alsocontemplates'th'e provision of amodifi'edmeans foradjustably looking the strip to the'peripheryof' a splitwheel.

These; other and" furtherobjects' and" ad vantages ofthe present invention will be clear from the following description and from: the drawing, in which:

Fig. 1 shows in elevationamommdn:splitswheel which :is opened and=:upon which: .isrmounted a .strip' embodying the presentdnvention. a

Fig. 2 shows a single perspective.

Fig; 3"shows a transverse section through the stripzon the line 3 +-3 0flFig.5, which is. here presumed torbe madeof a= heavy-fabric, the three foremost staples being in section, and illustrates the arrangement of staplesrin a preferred construction: I "T Fig. 4i shows a; part 'of the strip: near one edge thereof, andushows the side-of.theastripwhich is appiiedrto the periphery of." asplit-wheel.

Fig. 5 is a perspective view-of partiofzthe assembly of Fig; 1. nearzthe split: thereof which is to: the left intherlast znamed figure. g Y

Fig.4 6 ist-an. edge :vi'ew 'ofpart of the: strip-showing.the' arrangementzof' staples. in a preferred construction: This preferred construction: is th sameiwithrespectto Figs. 3, 4 andiG.

Fig. .7. is a perspective view." of part of the asstaple in. rectilinear ,semblyof Fig; 1 near: the split'thereofwhichsis tortheright-in'the -last namedfigure Fig. 8 is a perspective view ofthatendof th'e striptotheright of'.the split'iinFig. 1, and in Fig.

{lithe strip and means forlocking; it to thesplit wheel are seenfrombeneath, oroutwardlyirom thescenterof'rthe loopvformed when the strip is bentuponitself tofit the'periphery'ofthe wheel.

Fig. B-isa perspective viewofv a inodifieationof the fastening tongue-illustrated in Fig. 5. Essentially the invention consists in anabradingstrip, arrangedtobedetachably mounted on and: adjustablyheld on the periphery of asplit wheel, andin means for. mounting the strip thereonaandfor varying the effective length of said strip with respect to-said periphery and for tightening the strip against=slack.- Thus, I shall first describe theconstruction of the stripas an abradingmeans, and, thereafter, take up the-means whereby; it is suitably applied to the wheel for InaFig. 1 the strip I- is'seentobe approximately equal to=the= circumference of the related wheel in length so that it-maybe looped around the periphery of the-wheel and locked. to thewheel,

'withinthelsplit thereof. Inthe drawing I have designated the wheelasZ, a'peripheral pad such as riszcommonly provided on such wheels-as a mattress. to support .an' abrading strip by the reference numeralfl; the fixedportion of the wheel 'by l, and theiportion'movable'with respect to-the shaft-by 5; and-the shaf-tby 6- aratelyin perspective inFig. .2; as all such staples are'identical I have designated any, st'aplel, and

thickness of the strip.

staple extend away from the viewer to and be;

yond the other side of the strip I. F

It will be noticed in Fig. 4 that the staples are provided in rows parallel to the edge of the strip; and that the rows are provided in' stag-' gered pairs so that a great number of teeth may be provided, yet ample area is provided for the various staple bridges which are not required to overlap one another and thereby add to the Fig. 6 is a side View showing the edge of a short length of the strip, and the staple arrangement is clearly seen in that the shanks are continued .through the strip, for'purposes of illustration,

by dotted lines- A transverse section of the strip is seen'in Fig. 3 where for purposes of illustration the staples are presumed .to pass through the strip at ninety degrees thereto, and the section is taken on a plane presumed to pass through the centers of the nearer staples.

However, in actual practice, the sharpened ends of the shanks of the various staples are preferablyall bentin a uniform direction, speci fically thedirection of rotation of the wheel.

In Fig. 1, I showonlya few of the shanks 8 of the various staples, to either side of the split of the wheel; and only a few near the ends of the strip I are shown in Figs. and '7. Of course the rows of staples are continuous all around the loop of the strip.

The ends of the shanks of the staples may be sharpened so as to present scarifying tines in the direction of rotation of the wheel; such sharpening may be conveniently effected when the staples are out, prior to their application to the strip;

and, also, of course, the ends of the staples may be sharpened by grinding after being applied to the strip.

At the end of the strip I, I provide a member III, which isseen in Figs. 1 and 5 to be a piece of sheet material, preferably metal, provided on the inner surface of the strip and near the end thereof and folded over the edges of the strip and pressed securely thereagainst to form a grip. A tongue II'of the member It) extends beyond the endof the strip I and, in Figs. 1 and 5, is shown 'to be bent inwardly (i. e., with respect to the center of the loop of the strip) at about ninety 'degreesto a tangentof-the loop. If desired, the

member Ill may be modified, as illustrated in Fig. 9, by securing the tongue IIa thereto by means of the hinge IIb. I provideslots I2, I3

and I4 in the tongues II and Haas shown in Fig. 5 'andFig. 9. On the'portion 4 of the wheel andon thesurface thereof facing the split, two

studs I5 and I 6 are provided and which enter the slots I2 and respectively, as shown. At the other end of the strip I, I provide a member II, which is seen in Figs. 1 and '7 to be a piece of sheet material, preferably metal provided on the inner surface of the strip and near theendthereof and folded over the edges of th strip and pressed securely thereagainst similarly to member Into form a grip. The inner surface of member II is seen in Fig. 8. On the inner surface I provide a plurality of slots I8. A member I9, serving as a link, and operatively similar to the tongue II of member III is shown in Fig. 8 in perspective. The member I9 is provided with three slots 28, 2| and 22, disposed as are the slots I2, I3 and I4 in tongue II. On the portion of the wheel that is movable with respect to the shafti. 'e.,-portion 5, and on the surface thereof facing the split;-a stud 23 is provided for suturing the slot 2| of the member I9, as shown in open ends.

The studs I5, IS and 23 are pins conventionally provided on split wheels of the type illustrated and found in shoe repair or shoe manufacturing plants and which pins have; formerly been used to nail thereon a, strip of abrasive material.

'..The portion4 and the portion 5 of the wheel,

on the surface of each facing the split, are respectively provided with recesses 24,. 25 and 26,

' the first named recess being arranged to accom- .are arranged to accommodate, respectively, studs 23, and I5 and I6. w'

The member I9 is provided with a lug 2?, arranged to be received into any slotIS of mem- In mounting the strip upon wheel, the portion 4 and 5 thereof are separated as shown in Fig. 1; the strip is looped about the periphery of the wheel, and the tongue II properly applied over the studs I5 and I6, as shown in Fig. 5; the strip is drawn tightly around the periphery of the wheel, and member I9 being applied over stud 23, as shown in Fig. '7, the end of the strip provided with member IT is brought against the lug 21 of member I9 until the lug is received in one of the slots I8 appropriate to the tension desired; and the wheel is then closed by means usually provided in such wheels, and locked.

Preferably the tongue II is not sharply turned inwardly from the rest of the member IE3, so that a slight shoulder is provided and presented into the'split of the wheel, as shown in Fig. 5. This shoulder provides an abutment on which the member Il may rest, thus making a tight abutmerit when the split wheel is closed.

It would be quite practicable to end the strip farther back from the bend than shown in Fig. 5, so that the other end thereof might overlap slightly when the wheel is closed without increasing the effective diameter of the wheel at the junction of the strip. It will be seen that if, with wear, the effective link of the strip becomes somewhatlonger, the end thereof having the member II attached theretolm'ay be out, as with obvious that the tines provided by the shanks of the various staples may be repeatedly sharpened.

To sum up, since a flat wire is used in the practice of my invention instead of the round wire that is used with the tools of the prior art, grooves are cut into the abraded leather by the roughening tool of the present invention. The fibres of the leather are raised above the leather surface at the sides of the grooves. The cement is imbedded in the grooves and the combination of cement, grooves and raised fibres provide a locking efiect that is not accomplished with any of the roughening tools of the prior art. The leather'is cemented together in a manner superior to that heretofore accomplished.

Further, the diamond out or saw tooth cutting edges of the present invention dies not tear the leather, permitting my roughening tool to be lightly held against the leather with any degree of applied force. With tools in the prior art, the leather waspulled against the tool, ofttimes resulting in tearing it, which is eliminated by my tool because of the flat saw tooth or diamond shape construction, which I utilize.

I have shown only one embodiment of the present invention; but it will be understoodthat modifications within the scope of the invention are self-suggestive. The strip I may be conveniently made of a number of materials; heavy fabric, leather, plastic and fibre have been suggested, but other materials may serve.

I claim:

1. A roughening tool for the working of, leather mounted on the periphery of a split wheel having a pair of sections hinged together at one end of the sections, the other ends of said sections being separable whereby the separable ends of the sections may be brought into abutment and locked together, a first one of said hinged sections having a pair of spaced pins extending outwardly from the separable end thereof, a single pin extending outwardly from the separable end of the second section, said single pin positioned between said pair of pins upon bringing the separable ends of the sections into abutment, said roughening tool comprising an abrading strip removably mounted on the periphery of the split wheel, a first member upturned at the sides thereof and overlapping the edges of the strip and secured thereto at one end thereof, a tongue extending radially down from the member upon mounting the strip on the wheel, said tongue having three spaced elongated slots, two of said slots for receiving therein the two pins extending from the first section upon mounting the strip on the wheel and the third of said slots on said tongue receiving therein the pin on said second section upon bringing the separable ends of the two sections into abutment, a second member secured to the other end of the strip and upturned at the sides thereof and overlapping the edges of the strip,

said second member having a plurality of spaced slots underneath the strip, the said spaced slots on the second member being parallel to theaxis of the split wheel, and an element having a lug extending therefrom and three spaced slots for receiving the pin on the second section and the pins on the first section upon bringing the two sections together, the lug on said element received in a slot of the plurality of slots in the second member upon locking the sections together with the abrading strip mounted on the periphery of the wheel.

2. A roughening tool for the working of leather and for removably mounting on' the periphery of a split wheel having a pair of sections hinged together at one end of each section andbeing separable at the other end of each section, said separable ends to be brought together into abutment and looked, a first one of said sections having mounting means thereon at the separable end thereof, a second one of said sections having mounting means thereon at the separable end thereof, said roughening tool comprising a strip of flexible abrading material, a first member secured to the strip at one end thereof and having a tongue extending down from the member for engaging the said mounting means and securing the member on said first section, a second member secured to the other end of the strip and having a plurality of spaced slots underneath the strip, and an element for engaging the mounting means on said second section for securing the element on said second section, said element having means for selectively positioning the element in a slot in the second member to vary the efiective length of the strip upon mounting the strip on the periphery of the wheel.

3. The roughening tool of claim 2, said first member having a shoulder in rear of the tongue to receive thereon the other end of said strip upon mounting the strip on the periphery of the wheel.

4. The roughening tool of claim 2, said tongue being hingedly connected to said first member.

FRED STUCKLER.

REFERENCES CITED The following references .are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,347,299 Smith July 20, 1920 1,818,011 Sachse Aug. 11, 1931 1,928,066 Mancuso Sept. 26, 1933 2,368,577 Smith Jan. 30, 1945 FOREIGN PATENTS Number Country Date 9,568 Great Britain May 8, 1901 

